Gas-range.



H. W. LAWRENCE.

GAS RANGE. APPLICATION FILED JULY 28,1913. 1,098,272. 4 wa ame. 1 1

2 SHEETS-SHEET l. I

H. W. LAWRENCE.

GAS RANGE.

APPLICATION FILED JULY aa,1a1s.

Patented May 26, 191

2 snare-41mm 2 Wnesse HENRIETTA WILMER; LAWRENGE, 0F BALTIMORE, MARYLAND.

GAS-RANGE;

Specification eerie-users Patent.

Patented May 26, 1914.

Application filed July 28, 1913. Serial No. 781,672.

To all whom it may concern:

Be it known that I, Hnnnrnrra' WILMER LAWRENCE, a citizen of the United States, residing at Baltimore, in the State of Mary-. land, have invented certain new and useful Improvements in Gas-Ranges, of which the following is a specification.

My present invention pertains to improvements in gas ranges the construction and advantages of which will be hereinafter set forth, reference being had to the annexed drawings, wherein Figure 1 is a vertical transverse sectional view, on the line 1-1 of Fig. 2; Fig. 2 a similar view on the line 22 of Fig. 1; Fig. 3 is a perspective view oi! the lower portion of the range, showing the adjustable baffle-plate and the mechanism for raising or lowering the same; and Fig. 1 a section'al plan: of the lower portion or floor of the-range. I

The main object of the invention is to provide means whereby the lower portion of the range may be converted into an oven, 2, broi ling chamber or a boiling chamber, as may be desired.

,A; further object of the invention is to provide means for manipulating the adjustable baflie-plate employed to produce the chambers aforesaid.

With these and other objects in view reference is made to the annexed drawings, wherein 1 indicates the main body of the range; 2 the upper oven, beneath the bottom of which are arranged the gas-burners 3. Said burners, of course, may be of any type, and those shown are merely illustrative.

Preferably the Walls of the oven will be spaced away from the main portion of the range, thus forming ducts or passages 1, which open into a chamber 5 located below the burners 3. The lower end of said chamber is defined by a bottom plate 6, provided with slats or cross-bars 7, located centrally thereof, and beneath which there is mounted a slide 8. A burner 9 is arranged beneath said slide, and when the slide is closed the heat and products of combustion emanating from the burner pass up through openings 10 (Fig. 1) formed in the bottom plate 6, and enter fiues or spaces left between the odter walls .of the range and the inner side walls 11 and 12 of the chamber 5. Said walls will be provided with oppositely-disposed shelf or pan supports 13. Each of the walls 11 and 12 is provided with a pair of verticallyof the range and extending transversely thereof, as best indicated in Fig. l. The outer end of the shaft will be provided With a crank 18, which carries a springpressed locking pin 19, adapted to coact with openings 20 formed in a plate 21,

fixedly secured to the wall of the range. The

opposite ends of said cables are connected in pairs to the ends of cross-bars 22 and 23, the ends of said bars assi-ng into the channels or ways. A be e-plate 24 is secured.

to said bars 22 and 23,- and may be raised or lowered as desired by proper manipulation of the crank 18 upon the withdrawal of the locking-pin 19. The baflle-plate will preferably be provided with a downwardlyextending flange 25' upon each end, and these flanges will be perforated or provided with openings, 26'. Openings 27 will like- 'wise be formed, preferably adjacent the ends of the baflie-plate, said openings and the openings 26 permitting the free passage of the heat from the lower portion of the chamber to the upper portion thereof.

It is to be understood that in so far as the generic invention is concerned any suitable mechanism may be employed for raising and lowering the baflle-plate to brin about the desired relationship of said belie-plate to the other portions of the range. If it be desired to convert the upper portion of the chamber 5 into a broiling oven, the plate will be positioned as shown in the drawings, at which time the slide 8 will preferably be closed, and at the same time baking may be accomplished in the lower portion of the range, beneath the baflle-plate 24:. A roast placed upon the baflle-plate will then be subjected to the heat of the flame of the burners 3 and likewise to the heat which emanates from the burner 9 and passes up around the lower chamber 5. At the same time several sauce-pans may be placed on the cross-bars 7, and the burner 9 utilized for the purpose of boiling. If desired, the slide may be withdrawn and the heat from the burner 9 allowed to pass directly up beneath the bafiie-plate 24:. N

If the upper portion of the chamber 0 is to be used merely as a broiler, the batheplate will be raised to the upper dotted l ne position, to bring it 1nto proper relation to the burners 3. \Vhen so elevated, the lower portion of the chamber 5 will be relatively clear, and this will in effect convert the lower portion of the range into a relatively large second oven, defined by the under face of the battle-plate and the bottom plate 6. If it be desired to use the chamber thus formed as a boiling chamber, the sllde 8 will be withdrawn, and the vessel containing the article to be boiled placed upon the cross-bars 7, the products of combustion and any steam which may be generated, of course, passing up through the openings in the battle-plate and around the edges of the same, thence through the upper portion of the chamber 5 into the ducts or passages 4 to the vent stack usually employed with gasovens at the present time.

\Vhen the bathe-plate is brought to its lowermost position, as shown by the lower dotted line in Fig. 1, the entire chamber 5 will be converted into one large roasting oven, the heat passing from the burner 9,

if the slide 8 be open, being deflected by the bafiie-plate 24 and passing through the openings 26 and 27, thereby causing a proper circulation of heat upwardly through the chamber 5.

Having thus described my invention, what I claim is 1. In a gas range, the combination of an upper oven; burners located beneath the same in close proximity thereto; a chamber beneath said burners having fines or passages arranged exteriorly thereof and ex-' tending from a point adjacent its bottom and discharging into the space below the upper oven; a burner located'beneath the bottom of said lower chamber; and a battleplate adjustably mounted in said chamber.

2. In a gas range, the combination of a body portion; an oven located in the upper portion thereof; burners located beneath the oven in close proximity thereto; a chamber beneath said burners, the bottom of said chamber being spaced away from the bottom of the body; flues extending upwardly from the space between said bottoms; a burner located in said space beneath an opening formed in the bottom of the chamber; means for closing said opening; and a battle-plate adj ustably mounted in said chamber.

3. In a gas range, the combination of an oven; burners located immediately beneath the same; a chamber beneath said burners; a burner located in the lower portion of the range below the floor of said chamber, said floor having an opening therein to permit the passage of products of combustion from said burner upwardly through the same; a slide located over said burner and adapted to close said opening; a battle-plate located in the chamber aforesaid; and means for raising or lowering said baffie plate and holding the same in its adjusted position.

l. In a gas range, the combination of an upper oven; burners located beneath the same; a chamber formed below said burners, the side walls whereof are provided with a pair of vertically-disposed ways or channels; a bafiie-plate located in said chamber; cross-bars secured to said battle-plate] and terminating at their ends in said verticallydisposed Ways or channels; a pulley located adjacent the upper end of each of said channels; a winding shaft located in the lower portion of the range; cables passing from the ends of the cross-bars upwardly through the channels, over the pulleys, and downwardly to the winding shaft; and merns for rotating said shaft and locking the same in its adjusted position.

5. In a gas range, the combination of a body portion; an oven located in the upper portion thereof; burners located beneath the oven in close proximity thereto; a chamber beneath said burners, the bottom of said chamber being spaced away from the bottom of the body; fines extending upwardly from the space between said bottoms; a burner located in said space beneath an opening formed in'the bottom of the chamber; means for closing said opening; and a bathe-plate mounted in said chamber and adjustable as to height therein, said plate being provided with perforations whereby heated air may pass therethrough.

6. In a gas range, the combination of an upper oven; burners located beneath the same and in close proximity thereto; a chamber beneath said burners; a burner located in the lower portion of the range and below the chamber aforesaid; and a plate mounted in said chamber and adjustable as to height therein, said plate being provided with perforations adjacent its marginal portions, whereby heated air may pass therethrough.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRIETTA WILMER LAWRENCE 'Witnesses:

HORACE A. Dooen, BENNETT S. Jones. 

